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Line 15: Metastability is common in physics and chemistry – from an [[atom]] (many-body assembly) to statistical ensembles of [[molecule]]s ([[viscous fluid]]s, [[amorphous solid]]s, [[liquid crystal]]s, [[mineral]]s, etc.) at molecular levels or as a whole (see [[#States of matter\|Metastable states of matter]] and [[#Condensed matter and macromolecules\|grain piles]] below). The abundance of states is more prevalent as the systems grow larger and/or if the forces of their mutual interaction are spatially less uniform or more diverse. In [[systems dynamics\|dynamic systems]] (with [[feedback]]) like electronic circuits, signal trafficking, decisional, neural and immune systems, – the [[Time-invariant system\|time-invariance]] of the active or reactive patterns with respect to the external influences defines stability and metastability (see [[#Computational neuroscience\|brain metastability]] below). In these systems, the equivalent of [[thermal fluctuations]] in molecular systems is the "[[white noise]]" that affects signal propagation and the decision-making. ==Statistical physics and thermodynamics==<!-- [[Kinetic stability]] redirects here -->

Metastability: Difference between revisions